hoppscotch is an open source API development ecosystem. Prior to version 2026.3.0, there is an open redirect vulnerability that leads to token exfiltration. With these tokens, the attacker can sign in as the victim to takeover their account. This issue has been patched in version 2026.3.0.

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Fixes

Solution

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Workaround

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History

Thu, 02 Apr 2026 20:30:00 +0000

Type Values Removed Values Added
Description hoppscotch is an open source API development ecosystem. Prior to version 2026.3.0, there is an open redirect vulnerability that leads to token exfiltration. With these tokens, the attacker can sign in as the victim to takeover their account. This issue has been patched in version 2026.3.0.
Title hoppscotch: Improper loopback redirect_uri validation in device-login flow
Weaknesses CWE-601
References
Metrics cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-02T19:21:35.136Z

Reserved: 2026-03-31T17:27:08.659Z

Link: CVE-2026-34931

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-02T20:16:28.830

Modified: 2026-04-02T20:16:28.830

Link: CVE-2026-34931

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses